Table 2
Parameters of the five open clusters and their tidal tails.
| Name | X (pc) | Y (pc) | Z (pc) | rJ (pc) | Llead (pc) | Ltrail (pc) | Nlead | Ntrail | BFcluster | BFlead | BFtrail |
|---|---|---|---|---|---|---|---|---|---|---|---|
| BH 164 | −7830.95 | −298.14 | −25.32 | 9.90 | 12.98 | 6.74 | 46 | 61 | 0.26 ± 0.04 | 0.19 ± 0.07 | 0.33 ± 0.09 |
| Alessi 2 | −8664.69 | 284.62 | 90.45 | 9.55 | 35.97 | 35.13 | 51 | 49 | 0.22 ± 0.05 | 0.54 ± 0.13 | 0.40 ± 0.11 |
| NGC 2281 | −8615.26 | 43.48 | 172.18 | 13.58 | 38.50 | 25.34 | 92 | 44 | 0.24 ± 0.03 | 0.24 ± 0.06 | 0.31 ± 0.10 |
| NGC 2354 | −8794.02 | −1088.29 | −131.38 | 14.90 | 25.05 | 14.18 | 82 | 60 | 0.34 ± 0.06 | 0.23 ± 0.07 | 0.31 ± 0.09 |
| M 67 | −8718.53 | −428.90 | 481.10 | 20.56 | 29.45 | 31.36 | 74 | 89 | 0.28 ± 0.02 | 0.33 ± 0.09 | 0.26 ± 0.08 |
Notes. Col. 1: cluster name; Cols. 2–4: galactocentric positions of the identified members; Col. 5: best-fitting rJ from Hunt & Reffert (2024); Cols. 6–7: approximate projected extent of the tidal tails beyond rJ determined using the angular separation from the cluster center and the cluster distance, with the orbit direction aiding in identifying the tail components (Sect. 4.2); Cols. 8–9: number of stars in leading and trailing tails; Cols. 10–12: binary fractions (for mass ratio >0.5) in the cluster, leading tail and trailing tail (Sect. 4.4).
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